I shoot a G10 with S2000 strobe and use a UCLS "knock off" tray, handle, arms and clamps.
When I looked at the same tray, handle, arms and clamps from UCLS I couldn't tell the difference between them.
Although I didn't buy it from this site, I have heard good things about it and if you want to save money you can also check him out: opticaloceansales.com He's a frequent poster on this board as well.
Another recommendation is reefphotovideo.com The guys there are really good to talk to and won't try to "up sell" you. I bought my strobe and some other accessories through them.